August in Saintes-Maries-de-la-Mer is the warmest month of the year. In August, the weather in Saintes-Maries-de-la-Mer is typically warm. Average daily high temperature in August is about 25 degrees above zero. On average, Saintes-Maries-de-la-Mer has 19 sunny, 7 partly cloudy, 4 rainy, and 1 cloudy day in August. The rains are usually light.